Home / 20,104.89-27,735.64-12,553.10

Finding the Fourth Proportional to 20,104.89, 27,735.64 and 12,553.10

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Solution

The fourth proportional to 20,104.89, 27,735.64 and 12,553.10 is: 17,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.89 : 27,735.64 = 12,553.10 : x
  2. Step 2: Convert to fraction form
    20,104.89/27,735.64 = 12,553.10/x
  3. Step 3: Cross multiply
    20,104.89x = 27,735.64 × 12,553.10
  4. Step 4: Simplify right side
    20,104.89x = 348,168,262.48
  5. Step 5: Solve for x
    x = 348,168,262.48/20,104.89
  6. Step 6: Final answer
    x = 17,317.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.